#include<iostream>
using namespace std;
class String
{
public:
	String(char *charString)
	{
		string = charString;
	}

	int getLength();

	char* getString() const;
	friend ostream& operator <<(ostream&o,const String& m);
	
	friend String& operator+(String& n,const String&m);

	//Get String 
	void setString(char* s);
	//append string after a string
	char* strncat(char* p,char *q);
	//Get String len
	int strnlen(char *p);

private:
	char *string;
};